
\begin{table}[htb]
\caption{Robustness check: Experiment 1 with individual treatment conditions}
\begin{center}
\begin{tabular}{l c c}
\hline
 & Experiment 1 & Experiment 1 \\
\hline
Population opposed, business support & $-0.31$          & $-0.36$          \\
                                     & $ [-0.80; 0.16]$ & $ [-0.84; 0.12]$ \\
Business opposed, population support & $1.02^{*}$       & $1.04^{*}$       \\
                                     & $ [ 0.61; 1.45]$ & $ [ 0.60; 1.48]$ \\
Population support, business opposed & $1.51^{*}$       & $1.45^{*}$       \\
                                     & $ [ 1.10; 1.94]$ & $ [ 1.03; 1.89]$ \\
Age                                  &                  & $-0.01$          \\
                                     &                  & $ [-0.02; 0.01]$ \\
Male legislator                      &                  & $0.16$           \\
                                     &                  & $ [-0.20; 0.48]$ \\
Left-right ideology                  &                  & $0.24^{*}$       \\
                                     &                  & $ [ 0.12; 0.36]$ \\
Trustee vs. delegate                 &                  & $0.46^{*}$       \\
                                     &                  & $ [ 0.28; 0.63]$ \\
Government party                     &                  & $0.32$           \\
                                     &                  & $ [-0.04; 0.67]$ \\
Single member districts              &                  & $0.44$           \\
                                     &                  & $ [-0.07; 0.91]$ \\
Upper chamber                        &                  & $-0.39$          \\
                                     &                  & $ [-0.81; 0.05]$ \\
First term legislator                &                  & $-0.05$          \\
                                     &                  & $ [-0.38; 0.30]$ \\
Intercept                            & $5.33^{*}$       & $4.47^{*}$       \\
                                     & $ [ 4.98; 5.69]$ & $ [ 3.46; 5.48]$ \\
\hline
N                                    & $1001$           & $789$            \\
\hline
\multicolumn{3}{l}{\scriptsize{\parbox{0.85\linewidth}{$^*$ Null hypothesis value outside the 95\% confidence interval. Entries are unstandardized coefficients from a linear mixed-effect regression model. Bootstrapped confidence intervals in parentheses. Countries function as groups. Support for PTAs is captured on an 11-point scale. ``Businesses support, population oppose'' is the reference category.}}}
\end{tabular}
\label{tab:tableN1}
\end{center}
\end{table}
